<!-- top row of metrics -->
  <div class="overview_chart_container">    
    <h3>CPU Usage</h3>
    <div class="latest_value"></div>
    <div class="chart_info"></div>
    <%= erb :graph, :locals => {:chart_collector => "cpu", :chart_metrics => ["io_wait", "system", "user"], :chart_instance_name => "", :chart_y_scale_max => "100"} %>
  </div>
  <div class="overview_chart_container">
    <h3>Memory Usage</h3>
    <div class="latest_value"></div>
    <div class="chart_info"></div>
    <%= erb :graph, :locals => {:chart_collector => "memory", :chart_metrics => ["used_percent"], :chart_instance_name => "", :chart_y_scale_max => "100"} %>
  </div>
<!-- bottom row of metrics -->
  <div class="overview_chart_container">
    <h3>Disk Utilization</h3>
    <div class="latest_value"></div>
    <div class="chart_info"></div>
    <%= erb :graph, :locals => {:chart_collector => "disk", :chart_metrics => ["utilization"], :chart_instance_name => @disks.last, :chart_y_scale_max => "100"} %>
  </div>
  <div class="overview_chart_container">
    <h3>Network Traffic</h3>
    <div class="latest_value"></div>
    <div class="chart_info"></div>
    <%= erb :graph, :locals => {:chart_collector => "network", :chart_metrics => ["bytes_in", "bytes_out"], :chart_instance_name => @networks.first, :chart_y_scale_max => ""} %>
  </div> <!--  -->
